22113400321 has 4 divisors (see below), whose sum is σ = 22328093632. Its totient is φ = 21898707012.

The previous prime is 22113400319. The next prime is 22113400339. The reversal of 22113400321 is 12300431122.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22113400321 - 2¹ = 22113400319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22113400381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 107346501 + ... + 107346706.

It is an arithmetic number, because the mean of its divisors is an integer number (5582023408).

Almost surely, 2^22113400321 is an apocalyptic number.

It is an amenable number.

22113400321 is a deficient number, since it is larger than the sum of its proper divisors (214693311).

22113400321 is a wasteful number, since it uses less digits than its factorization.

22113400321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214693310.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 22113400321 its reverse (12300431122), we get a palindrome (34413831443).

The spelling of 22113400321 in words is "twenty-two billion, one hundred thirteen million, four hundred thousand, three hundred twenty-one".